CN106300678B - A kind of digital protective relay system for supporting unification of three nets network - Google Patents
A kind of digital protective relay system for supporting unification of three nets network Download PDFInfo
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- H02J13/0013—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/16—Electric power substations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/124—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/128—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment involving the use of Internet protocol
Abstract
The invention discloses a kind of digital protective relay systems for supporting unification of three nets network, including supporting the multichannel ethernet interface module with unification of three nets network interface；SV sampled value, GOOSE, station level and the ethernet frame of PTP message frame transmitting-receiving is supported to pre-process IP kernel module；Self-adaptive multi-path sample values synchronization module；And protective relaying device protection, observing and controlling, metering, the data receiver and processing module for joining blocking function are completed, realize intelligent substation relay protection and automation function.The present invention can be used in intelligent substation; realize the transmitting-receiving process of data and the quick protection of electric network fault in the station transmitted based on sampled value networking or unification of three nets common network; a solution is provided based on the function realization of relay protection device under Unified Network framework for current intelligent substation; the interface of relay protection device can be simplified and reduce the requirement of its data-handling capacity, improve the stability and reliability of relay protection device operation.
Description
Technical field
The present invention relates to a kind of digital protective relay systems for supporting unification of three nets network, belong to Power System Intelligent change
Power station technology field.
Background technique
According to the description and requirement of 61850 substation communication network of IEC and system standard, intelligent substation comprehensive automation
The equipment of change system presses process layer, three layers of wall, station level layered arrangement according to its function.In the long term, substation network
Structure will divide three phases gradually to improve, i.e., ad hoc mode, process layer mode bus, station level bus are " unification of three nets " side
Formula.
In intelligent substation network, the relay protection devices such as protection supervisory equipment need setting across interval to access device
Standby voltage and current realizes synchronous acquisition and processing, as main transformer protection, bus protection, failure recorded broadcast device are required to each input
Sampling data synchronization, the accurate recording of identification and processing and information for primary equipment failure also seems especially heavy
It wants.Due to being limited by sampled value networking simultaneous techniques maturity and stability, in current engineer application, station is mostly used to control
Layer MMS network, SV sampled value network, GOOSE network layering separate configurations scheme, sampled value transmission, which mostly uses, point-to-point directly adopts
Mode, GOOSE mostly uses point-to-point straight jump and network tripping controls and the scheme deposited；Wherein, it is based on global synchronization sampled value
The process layer bus schemes and " unification of three nets " scheme of networking transmission have a small amount of pilot application, not yet a large amount of engineering applications.
When sampled value networking transmission, relay protection device can all send respective message on the network switch；By
It is generally higher than 3Mb/s in single-channel sampling Value Data message flow, in voltage and current sampling interval more i.e. sampled value output equipment
When being spaced more, the transient data flow on network switch single port is huge, and the flow on single switch port can
50Mb/s can be greater than.The relay protection devices such as existing protection supervisory equipment and failure recorded broadcast device, need while receiving area
The Ethernet message data for managing big flow, by taking the typical changing distances of volume three as an example, when being divided into 8 between the sampled value of equipment access,
Flow on individual ethernet interface is just up to 25Mb/s.If sampling value message is without processing, directly send and is handled by host CPU,
So not only host CPU transmission bandwidth is inadequate, and the data-handling capacity of host CPU is also unable to satisfy wanting for such big flow Message processing
It asks, this will largely effect on the stability of the performance and work of protective relaying device.
Meanwhile the existing intelligent substation engineering that networking is distinguished with station level network, sampled value network, GOOSE network
Application mode needs the quantity of relay protection device and external interface large number of, and interface is various and can not standardize, system
Network structure and optical fiber link configuration are complicated, and resource-sharing is not easy, and equipment development and engineering construction cost are also higher.These are insufficient
Place, all constrains the development of intelligent substation technology, does not give full play of the technical advantage of 61850 standard of IEC, Wu Faman
The needs of sufficient future substation technology development.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of digital protective relay for supporting unification of three nets network
Device is based on sampled value networking and secondary device relay protection under " unification of three nets " network condition and oneself to meet intelligent substation
The needs that dynamicization function is realized.
For achieving the above object, the present invention is that technical solution below is taken to realize:
A kind of digital protective relay system for supporting unification of three nets network, comprising:
Multichannel ethernet interface module: include multiple ethernet hardware interfaces, access by intelligent terminal, combining unit
In the unification of three nets switch network that equipment, relay protection device form, all kinds of message datas of transmission over networks are obtained；
Ethernet frame pre-processes IP kernel module: programming and realizes in FPGA, supports SV sampling value message, GOOSE message, stands
The classification by frame type for controlling layer MMS message and PTP message receives pretreatment and caching, while supporting GOOSE message, station level
The caching and transmission of MMS message and PTP message；
Self-adaptive multi-path sample values synchronization module: realize across the interval sampling Value Data of multichannel after network transmission
Data synchronization and data window interpolation calculation；
Data receiver and processing module: the reception data buffer zone GOOSE, the data buffer zone station level MMS, PTP data are slow
It is data cached to rush the GOOSE message come in area and SV sampled value buffer area, MMS message, PTP message, SV sampling value message, realizes
Intelligent power transformation is realized in the protection of protective relaying device, observing and controlling, metering, connection blocking function, the processing and response of standard traffic response
The relay protection stood and information automation；Meanwhile coding is responsible for by main DSP, by related GOOSE message, station level MMS message and
PTP message is sent according to the priority and sequence requirement of respective message frame data.
In unification of three nets switch network above-mentioned include SV sampling value message, GOOSE message, station level MMS message,
PTP message and the common message of Ethernet；Each combining unit equipment presses own beat and sends SV sampling value message, and intelligent terminal is set
It is standby to send and receive corresponding GOOSE message according to standard requirements, while relay protection device not only receives SV sampling value message,
Quick GOOSE communication is carried out with intelligent terminal, is also communicated in standing between communication manager and backstage with MMS message,
Realize automation in station.
Multiple ethernet hardware interface functions above-mentioned are equivalent, and each ethernet hardware interface, which is provided with, receives three by configuration
The ability of all kinds of message frame data in net unification network.
Multiple ethernet hardware interfaces above-mentioned can be accessed simultaneously in same unification of three nets network, realize the classification of single device
Data are respectively connected to；Or access in different unification of three nets networks, redundant network is formed, to adapt to live unification of three nets, divide
The needs for directly jumping all kinds of networking engineer applications are directly adopted in vertical networking.
Ethernet frame above-mentioned pre-processes IP kernel module, can expand according to the corresponding clock equipment configuration of sampled value frame is automatic
Multiple PTP are opened up from clock interface, are respectively corresponded from clock, the fixed master clock tracked in some sampled value output equipment, without participating in
The optimal clock of standard selects logic, from the corresponding requirement between clock without time cooperation, independently of each other.
Self-adaptive multi-path sample values synchronization module above-mentioned is obtained every in equipment by the independent sample pulse of setting
A PTP from clock independent sample pulse arrive the moment relative time, using respectively between clock time difference and specified sampling
Delay obtains the relativeness between each sampled value sending device between sampled data, is calculated using adaptive backtracking interpolation algorithm
The sampled data of synchronization realizes across interval sampling Value Data of the multichannel through network transmission in a sampled value receiving device
Synchronization and interpolation calculation.
It is as follows that unification of three nets switch network above-mentioned carries out the step of Message processing:
(1): the ether network packet that multichannel ethernet interface module is received is output to FPGA by Ethernet physical interface
In data-interface；
(2): received message data being converted into 8 by the ethernet medium access control MAC interface that FPGA is simulated
Parallel data output carries out Ethernet according to SV sampling value message, GOOSE message, station level MMS message and PTP type of message
Frame type identification；
(3): for three kinds of GOOSE message, station level MMS message and PTP message data frames, 3 data bufferings are set
Area, the respectively data buffer zone GOOSE, the data buffer zone station level MMS and the data buffer zone PTP, when receiving this three classes
When message, message data is directly deposited in respective data buffer zone；
(4): for SV sampling value message, using the decoded method of hardware sampled value, programming and realize in FPGA, according to adopting
Sample value receive configuration by multicast address differentiate, ASN.1 decoding, svID sampled value mark differentiate, sampling channel order number matches and
Frame data integrality differentiates process, and the data of needs are directly extracted from SV sampling value message, are then stored in SV sampled value
It is read in buffer area for main DSP；
(5): if met, SV sampled value frame multicast address is mismatched without occurrence, svID sampled value mark data, SV is adopted
The integrality of sample value frame data does not meet the data structure and content of IEC 61850-9-2 specification standard, appointing in three conditions
One condition shows that equipment does not need the frame of data information or frame data mistake, then abandons the SV sampling value message immediately, go to
Step (1) carries out the pretreatment for newly arriving data frame；
(6): when there is data to need to be sent on Ethernet, coded frame data being responsible for by main DSP, and by support
GOOSE message, station level MMS message and PTP message send buffer area by the write-in of frame type, then according to respective message frame data
Priority and sequence requirement send.
In aforementioned step (2), the time delay that frame type identification generates is compensated using delay assembly line.
The beneficial effects of the present invention are: the present invention can be used in intelligent substation, realize based on sampled value networking and " three nets
The function of secondary device IEC61850 standard and transformer station's integrated system is realized under unification " network condition, is become for intelligence at present
Power station provides a kind of convenient effective solution scheme based on the realization of relay protection device under common network network architecture.
Detailed description of the invention
Fig. 1 is that the digital protective relay system of unification of three nets network is supported to realize block diagram；
Fig. 2 is the Ethernet Message processing flow chart based on ethernet network.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following embodiment is only used for clearly illustrating the present invention
Technical solution, and not intended to limit the protection scope of the present invention.
As shown in Figure 1, the digital protective relay system of support unification of three nets network of the invention, comprising:
Multichannel ethernet interface module: include multiple ethernet hardware interfaces, access by intelligent terminal, combining unit
In the unification of three nets switch network that equipment, relay protection device form, all kinds of message datas of transmission over networks are obtained.The net
It include SV sampling value message, GOOSE message, station level MMS message, PTP message and other common ether network packets on network.Three
In net unification switch network, each combining unit equipment presses own beat and sends SV sampling value message, intelligent terminal according to
Standard requirements send and receive corresponding GOOSE message, while relay protection device not only receives SV sampling value message, with intelligence
Terminal device carries out quick GOOSE communication, is also communicated in standing between communication manager and backstage with MMS message, realizes station
Interior automation function.
Multiple ethernet hardware interface functions in device are equivalent, and each ethernet hardware interface, which has, receives three by configuration
The ability of all kinds of message frame data in net unification network.Interface can be accessed simultaneously in same " unification of three nets " network, realize single dress
The classification data set is respectively connected to；Or access in different " unification of three nets " networks, redundant network is formed, to adapt to scene three
Net unification, directly adopts the needs for directly jumping all kinds of networking engineer applications at discrete networking.
Ethernet frame pre-processes IP kernel module, programs and realizes in FPGA, supports SV sampled value, GOOSE message, station level
The classification by frame type of MMS message and PTP message frame receives pretreatment and caching, while supporting GOOSE message, station level report
Caching and the transmission of text and PTP message frame.The Ethernet Message processing process of ethernet network as shown in Fig. 2,
Step 1: the ether network packet that multichannel ethernet interface module is received is output to by Ethernet physical interface
In FPGA data interface.
Step 2: received message data is converted into 8 by the ethernet medium access control MAC interface that FPGA is simulated
Bit parallel data output carries out ethernet frame type according to SV sampled value, GOOSE message, station level message and PTP type of message
Differentiate.The time delay that frame type identification generates is compensated using delay assembly line.
Step 3: for three kinds of GOOSE data frame, common station level frame and PTP frame data frames, data traffic is small
(generally less than 100k byte/s) and data response requirement of real-time are lower, then 3 data packet buffers are arranged, respectively
The data buffer zone GOOSE, station level data buffer zone and the data buffer zone PTP, when receiving this three classes data packet, report
Literary data are directly deposited in respective data packet buffer.
Step 4: for SV sampled value frame, data traffic larger ((general 2 ~ 3M byte/s)) and data response real-time
It is required that high (250 microseconds/frame), then use the decoded method of hardware sampled value, programs and realize in FPGA, received according to sampled value
Configuration differentiates by multicast address, ASN.1 is decoded, svID sampled value mark differentiates, sampling channel order number matches and frame data are complete
Whole property differentiates process, and the data of needs are directly extracted from SV sampled value frame.The data of SV sampled value frame do not cache directly, and
After being decoded, the sample channel data needed is directly extracted, is then stored in SV sampled value buffer area and is read for main DSP.
Step 5: if meeting SV sampled value frame multicast address without occurrence, svID sampled value mark data mismatch, SV
The integrality of sampled value frame data does not meet the data structure and content of IEC 61850-9-2 specification standard, in three conditions
Either condition shows that equipment does not need the frame of data information or frame data mistake, then abandons the SV sampled value frame immediately, go to
Step 1 carries out the pretreatment for newly arriving data frame.
Step 6: when there is data to need to be sent on Ethernet, being responsible for coded frame data by main DSP, and by support
GOOSE message, station level MMS message and PTP message send buffer area by the write-in of frame type, then according to respective message frame data
Priority and sequence requirement send.
Above-mentioned ethernet network can be sampled value networking transmission network or station level, GOOSE, SV sampled value common network
" unification of three nets " network.
In addition, ethernet frame pre-processes IP kernel module, can expand according to the corresponding clock equipment configuration of sampled value frame is automatic
Multiple PTP are opened up from clock interface, are respectively corresponded from clock, the fixed master clock tracked in some sampled value output equipment, without participating in
The optimal clock of standard selects logic, from the corresponding requirement between clock without time cooperation, independently of each other.
Self-adaptive multi-path sample values synchronization module: across the interval sampling Value Data of multichannel is realized, after network transmission
Across interval sampling Value Data is synchronous and data window interpolation calculation.Implementation method is as follows:
Self-adaptive multi-path sample values synchronization module obtains each PTP in equipment by the independent sample pulse of setting
From clock independent sample pulse arrive the moment relative time, using respectively between clock time difference and specified sampling delay,
The relativeness between each sampled value sending device between sampled data is obtained, is calculated using adaptive backtracking interpolation algorithm with for the moment
The sampled data at quarter realizes synchronization of across interval sampling Value Data of the multichannel through network transmission in a sampled value receiving device
And interpolation calculation.
Data receiver and processing module receive the data buffer zone GOOSE, station level data buffer zone, PTP data buffering
The packet buffers numbers such as GOOSE message, MMS message, PTP message, the SV sampling value message that area and SV sampled value buffer area are come
According to comprehensive other equipment operation data realizes the protection, observing and controlling, metering, connection blocking function of protective relaying device, standard traffic
The relay protection and information automation function of intelligent substation are realized in the processing and response of response.Meanwhile volume is responsible for by main DSP
Code, by related GOOSE message, station level MMS message and PTP message according to the priority and sequence requirement of respective message frame data
It sends.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the technical principles of the invention, several improvement and deformations can also be made, these improvement and deformations
Also it should be regarded as protection scope of the present invention.
Claims (7)
1. a kind of digital protective relay system for supporting unification of three nets network, it is characterised in that: include:
Multichannel ethernet interface module: including multiple ethernet hardware interfaces, and access is set by intelligent terminal, combining unit
In standby, relay protection device composition unification of three nets switch network, all kinds of message datas of transmission over networks are obtained；
Ethernet frame pre-processes IP kernel module: programming and realizes in FPGA, supports SV sampling value message, GOOSE message, station level
The classification by frame type of MMS message and PTP message receives pretreatment and caching, while supporting GOOSE message, station level MMS
The caching and transmission of message and PTP message；
Self-adaptive multi-path sample values synchronization module: data of across the interval sampling Value Data of multichannel after network transmission are realized
Synchronous and data window interpolation calculation；
Data receiver and processing module: the data buffer zone GOOSE, the data buffer zone station level MMS, the data buffer zone PTP are received
And the GOOSE message of SV sampled value buffer area, MMS message, PTP message, SV sampling value message are data cached, realize relay
Intelligent substation is realized in the protection of protective device, observing and controlling, metering, connection blocking function, the processing and response of standard traffic response
Relay protection and information automation；Meanwhile coding is responsible for by main DSP, by related GOOSE message, station level MMS message and PTP
Message is sent according to the priority and sequence requirement of respective message frame data；
It is as follows that the unification of three nets switch network carries out the step of Message processing:
(1): the ether network packet that multichannel ethernet interface module is received is output to FPGA data by Ethernet physical interface
In interface；
(2): received message data being converted into 8 parallel-by-bits by the ethernet medium access control MAC interface that FPGA is simulated
Data output carries out ethernet frame class according to SV sampling value message, GOOSE message, station level MMS message and PTP type of message
Type differentiates；
(3): for three kinds of GOOSE message, station level MMS message and PTP message data frames, 3 data buffer zones are set, point
Not Wei the data buffer zone GOOSE, the data buffer zone station level MMS and the data buffer zone PTP, when receiving this three classes message
When, message data is directly deposited in respective data buffer zone；
(4): for SV sampling value message, using the decoded method of hardware sampled value, programming and realize in FPGA, according to sampled value
It receives and configures by multicast address differentiation, ASN.1 decoding, the differentiation of svID sampled value mark, sampling channel order number matches and frame number
Process is differentiated according to integrality, the data of needs are directly extracted from SV sampling value message, is then stored in SV sampled value buffering
It is read in area for main DSP；
(5): if meeting SV sampled value frame multicast address without occurrence, svID sampled value mark data mismatch, SV sampled value
The integrality of frame data does not meet the data structure and content of IEC 61850-9-2 specification standard, any bar in three conditions
Part shows that equipment does not need the frame of data information or frame data mistake, then abandons the SV sampling value message immediately, go to step
(1), the pretreatment for newly arriving data frame is carried out；
(6): when there is data to need to be sent on Ethernet, coded frame data being responsible for by main DSP, and the GOOSE of support is reported
Text, station level MMS message and PTP message send buffer area by the write-in of frame type, then according to the preferential of respective message frame data
Grade and sequence requirement are sent.
2. a kind of digital protective relay system for supporting unification of three nets network according to claim 1, it is characterised in that:
In the unification of three nets switch network include SV sampling value message, GOOSE message, station level MMS message, PTP message and
The common message of Ethernet；Each combining unit equipment presses own beat and sends SV sampling value message, and intelligent terminal is according to standard
It is required that corresponding GOOSE message is sent and received, while relay protection device not only receives SV sampling value message, with intelligent terminal
Equipment carries out quick GOOSE communication, is also communicated in station between communication manager and backstage with MMS message, realizes in station certainly
Dynamicization.
3. a kind of digital protective relay system for supporting unification of three nets network according to claim 1, it is characterised in that:
The multiple ethernet hardware interface function is equivalent, and each ethernet hardware interface, which is provided with, receives unification of three nets network by configuration
In all kinds of message frame data ability.
4. a kind of digital protective relay system for supporting unification of three nets network according to claim 3, it is characterised in that:
The multiple ethernet hardware interface can be accessed simultaneously in same unification of three nets network, realize that the classification data of single device connects respectively
Enter；Or in the different unification of three nets network of access, redundant network is formed, to adapt to live unification of three nets, discrete networking, directly adopt
Directly jump the needs of all kinds of networking engineer applications.
5. a kind of digital protective relay system for supporting unification of three nets network according to claim 1, it is characterised in that:
The ethernet frame pre-processes IP kernel module, can extend automatically multiple PTP according to the corresponding clock equipment configuration of sampled value frame
It from clock interface, is respectively corresponded from clock, the fixed master clock tracked in some sampled value output equipment, without participating in the best of standard
Clock selection logic, from the corresponding requirement between clock without time cooperation, independently of each other.
6. a kind of digital protective relay system for supporting unification of three nets network according to claim 1, it is characterised in that:
The self-adaptive multi-path sample values synchronization module obtains in equipment each PTP from clock by the independent sample pulse of setting
Independent sample pulse arrive the moment relative time, using respectively between clock time difference and specified sampling delay, obtain
Relativeness between each sampled value sending device between sampled data calculates synchronization using adaptive backtracking interpolation algorithm
Sampled data is realized synchronization of across interval sampling Value Data of the multichannel through network transmission in a sampled value receiving device and is inserted
Value calculates.
7. a kind of digital protective relay system for supporting unification of three nets network according to claim 1, it is characterised in that:
In the step (2), the time delay that frame type identification generates is compensated using delay assembly line.
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| EP3389227B1 (en) * | 2017-04-10 | 2020-07-15 | General Electric Technology GmbH | Systems and methods for network failover in digital substations |
| CN108712349A (en) * | 2018-04-27 | 2018-10-26 | 许继集团有限公司 | Site protection unification of three nets is total to port transmitting method and site protection system |
| CN108880858B (en) * | 2018-05-23 | 2021-06-11 | 许继集团有限公司 | Protocol communication system for high-voltage direct-current transmission |
| CN110336641B (en) * | 2019-07-02 | 2021-10-08 | 深圳市南科中瑞电气有限公司 | Relay protection test method, relay test equipment, storage medium and device |
| CN111277374B (en) * | 2020-01-22 | 2022-12-16 | 北京四方继保工程技术有限公司 | Method for sampling dual redundant SV of digital device and intelligent substation protection device |
| CN112671598B (en) * | 2020-12-01 | 2021-09-24 | 南方电网数字电网研究院有限公司 | Special algorithm hardware module for electric power suitable for electric power system control protection device |
| CN112714082A (en) * | 2021-03-26 | 2021-04-27 | 北京智芯微电子科技有限公司 | Ethernet chip for SV and GOOSE communication |
| CN114257660A (en) * | 2021-11-04 | 2022-03-29 | 南方电网数字电网研究院有限公司 | SV and GOOSE message processing method, device, equipment and storage medium |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694373A (en) * | 2012-01-04 | 2012-09-26 | 河南科技大学 | Intelligent electronic device using transient fault information and relay protection method |
| CN103033703A (en) * | 2012-12-11 | 2013-04-10 | 上海市电力公司 | On-line and off-line integrated analytical testing method for intelligent substation |
| CN104283746A (en) * | 2014-09-26 | 2015-01-14 | 中国南方电网有限责任公司电网技术研究中心 | System and method for achieving digital substation three-in-one network through FPGA |
-
2016
- 2016-09-28 CN CN201610859623.3A patent/CN106300678B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694373A (en) * | 2012-01-04 | 2012-09-26 | 河南科技大学 | Intelligent electronic device using transient fault information and relay protection method |
| CN103033703A (en) * | 2012-12-11 | 2013-04-10 | 上海市电力公司 | On-line and off-line integrated analytical testing method for intelligent substation |
| CN104283746A (en) * | 2014-09-26 | 2015-01-14 | 中国南方电网有限责任公司电网技术研究中心 | System and method for achieving digital substation three-in-one network through FPGA |
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